61560530 has 16 divisors (see below), whose sum is σ = 111375000. Its totient is φ = 24498432.

The previous prime is 61560523. The next prime is 61560547. The reversal of 61560530 is 3506516.

It can be written as a sum of positive squares in 4 ways, for example, as 61293241 + 267289 = 7829^2 + 517^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 61560530.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13655 + ... + 17594.

Almost surely, 2^61560530 is an apocalyptic number.

61560530 is a deficient number, since it is larger than the sum of its proper divisors (49814470).

61560530 is a wasteful number, since it uses less digits than its factorization.

61560530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31453.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 61560530 is about 7846.0518733947. The cubic root of 61560530 is about 394.8517950651.

The spelling of 61560530 in words is "sixty-one million, five hundred sixty thousand, five hundred thirty".